/**
 * #      1234
 * 名称   替换子串得到平衡字符串
 * 链接   https://leetcode-cn.com/problems/replace-the-substring-for-balanced-string
 * 题解   [68](https://leetcode-cn.com/problems/replace-the-substring-for-balanced-string/solution)
 * 通过率 33.0%
 * 难道   中等
 */

